🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.64 AU - 0.68 AU

Year: 341 Days

Day: 12.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 1.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,349,750 km

• M1: 483,351 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623

Radius: 9.9

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.7 AU - 0.86 AU

Year: 438 Days

Day: 12.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,349,750 km

• M1: 123,119 km (0.11 R)
• M2: 523,892 km (0.099 R)
• M3: 854,802 km (0.096 R)
• M4: 1,253,780 km (0.109 R)
• M5: 1,875,509 km (0.098 R)
• M6: 2,187,420 km (0.116 R)
• M7: 2,971,463 km (0.116 R)
• M8: 3,727,680 km (0.117 R)
• M9: 4,477,763 km (0.097 R)
• M10: 5,277,364 km (0.085 R)
• M11: 5,702,970 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.2

Radius: 9.9

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.82 AU - 0.84 AU

Year: 481 Days

Day: 14.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,349,750 km

• M1: 123,119 km (0.111 R)
• M2: 553,363 km (0.1 R)
• M3: 1,112,260 km (0.12 R)
• M4: 1,444,218 km (0.094 R)
• M5: 2,297,225 km (0.071 R)
• M6: 3,516,148 km (0.098 R)
• M7: 4,163,758 km (0.054 R)
• M8: 4,812,713 km (0.107 R)
• M9: 5,544,396 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 811.3

Radius: 13

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 3.42 AU - 5.34 AU

Year: 5828 Days

Day: 5.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 49,349,750 km

• M1: 162,762 km (0.094 R)
• M2: 601,533 km (0.116 R)
• M3: 1,210,995 km (0.08 R)
• M4: 2,679,298 km (0.115 R)
• M5: 3,265,572 km (0.038 R)
• M6: 5,555,467 km (0.12 R)
• M7: 7,213,609 km (0.105 R)
• M8: 7,618,870 km (0.093 R)
• M9: 8,597,240 km (0.075 R)
• M10: 11,884,653 km (0.084 R)
• M11: 12,399,420 km (0.097 R)
• M12: 12,875,590 km (0.094 R)
• M13: 13,363,727 km (0.099 R)
• M14: 13,808,183 km (0.092 R)
• M15: 14,962,480 km (0.077 R)
• M16: 16,242,589 km (0.066 R)
• M17: 16,748,978 km (0.062 R)
• M18: 17,860,340 km (0.086 R)
• M19: 19,020,172 km (0.078 R)
• M20: 20,964,496 km (0.119 R)
• M21: 21,793,567 km (0.116 R)
• M22: 22,566,091 km (0.117 R)
• M23: 25,499,107 km (0.091 R)
• M24: 26,530,734 km (0.12 R)
• M25: 33,517,553 km (0.104 R)
• M26: 34,029,626 km (0.106 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 695.5

Radius: 6.7

Gravity: 15.49 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 5.48 AU - 8.28 AU

Year: 11474 Days

Day: 16.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 49,349,750 km

• M1: 83,476 km (0.066 R)
• M2: 370,704 km (0.052 R)
• M3: 785,090 km (0.065 R)
• M4: 1,520,962 km (0.07 R)
• M5: 2,155,406 km (0.114 R)
• M6: 2,732,106 km (0.031 R)
• M7: 3,091,739 km (0.077 R)
• M8: 4,604,772 km (0.071 R)
• M9: 5,877,102 km (0.102 R)
• M10: 7,495,901 km (0.071 R)
• M11: 8,201,404 km (0.102 R)
• M12: 8,523,638 km (0.097 R)
• M13: 10,001,366 km (0.11 R)
• M14: 10,691,760 km (0.091 R)
• M15: 11,300,474 km (0.087 R)
• M16: 11,584,710 km (0.113 R)
• M17: 11,932,076 km (0.032 R)
• M18: 14,695,148 km (0.092 R)
• M19: 19,191,911 km (0.096 R)
• M20: 19,596,723 km (0.09 R)
• M21: 20,930,537 km (0.053 R)
• M22: 23,685,083 km (0.059 R)
• M23: 25,584,976 km (0.064 R)
• M24: 26,672,104 km (0.12 R)
• M25: 27,481,877 km (0.062 R)
• M26: 27,789,749 km (0.047 R)
• M27: 28,307,956 km (0.072 R)
• M28: 33,732,076 km (0.086 R)
• M29: 37,373,438 km (0.108 R)
• M30: 43,870,174 km (0.119 R)
• M31: 51,390,908 km (0.032 R)
• M32: 52,801,466 km (0.055 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 562.9

Radius: 5.6

Gravity: 17.95 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 5.42 AU - 8.38 AU

Year: 11524 Days

Day: 24.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 49,349,750 km

• M1: 69,713 km (0.065 R)
• M2: 307,573 km (0.092 R)
• M3: 481,855 km (0.048 R)
• M4: 759,508 km (0.05 R)
• M5: 1,413,550 km (0.117 R)
• M6: 1,609,972 km (0.115 R)
• M7: 2,040,964 km (0.108 R)
• M8: 3,906,300 km (0.079 R)
• M9: 4,210,582 km (0.034 R)
• M10: 4,773,070 km (0.063 R)
• M11: 5,588,079 km (0.086 R)
• M12: 6,119,450 km (0.086 R)
• M13: 6,454,101 km (0.055 R)
• M14: 7,079,121 km (0.117 R)
• M15: 12,333,447 km (0.119 R)
• M16: 12,927,650 km (0.109 R)
• M17: 16,470,726 km (0.104 R)
• M18: 18,540,113 km (0.035 R)
• M19: 25,206,493 km (0.038 R)
• M20: 28,145,643 km (0.069 R)
• M21: 29,697,421 km (0.061 R)
• M22: 31,196,392 km (0.084 R)
• M23: 31,414,506 km (0.025 R)
• M24: 31,633,816 km (0.029 R)
• M25: 31,964,427 km (0.073 R)
• M26: 35,163,129 km (0.119 R)
• M27: 46,309,816 km (0.053 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 11,468 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit